US3158763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric gauge
Assignee: Individual
•
Filing: 1961-12-05
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Granted: 1964-11-24
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Busch Siegfried
- 👤 Hatschek Rudolf
- 👤 Pischinger Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/08; G01L23/10; Y; Y10; Y10S; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PIEZOELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR MEASURING PRESSURE VARIATIONS IN THE CYLINDERS OF INTERNAL COMBUSTION ENGINES, COMPRISING A CASING, PIEZOELEMENTS IN SAID CASING, A HEAD IN SAID CASING FOR TRANSMITTING PRESSURE TO THE SAID PIEZOELEMENTS, SAID CASING AND HEAD HAVING A RING SLOT FORMED BETWEEN THE CASING AND THE HEAD, A MEMBRANE CLOSING SAID RING SLOT AND FORMING A TORUS OVER THE ENTIRE WIDTH OF SAID RING SLOT, SAID TORUS PRESENTING AN ANNULAR CROSS-SECTION AT LEAST IN ITS CENTRAL PORTION WITH A CENTER OF SAID CROSSSECTION BEING LOCATED APPROXIMATELY IN A SEATING OF THE MEMBRANE ON THE CASING AND THE HEAD, THE SAID
Claim 2
Dependent Claim
103 words
A PIEZOELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR MEASURING PRESSURE VARIATIONS IN THE CYLINDERS OF INTERNAL COMBUSTION ENGINES, COMPRISING A CASING, PIEZOELEMENTS IN SAID CASING, A HEAD IN SAID CASING FOR TRANSMITTING PRESSURE TO THE SAID PIEZOELEMENTS, SAID CASING AND HEAD HAVING A RING SLOT FORMED BETWEEN THE CASING AND THE HEAD, A MEMBRANE CLOSING SAID RING SLOT AND FORMING A TORUS OVER THE ENTIRE WIDTH OF SAID RING SLOT, SAID TORUS PRESENTING AN ANNULAR CROSS-SECTION AT LEAST IN ITS CENTRAL PORTION WITH A CENTER OF SAID CROSSSECTION BEING LOCATED APPROXIMATELY IN A SEATING OF THE MEMBRANE ON THE CASING AND THE HEAD, THE SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |